WO2012086490A1 - Outil rotatif - Google Patents
Outil rotatif Download PDFInfo
- Publication number
- WO2012086490A1 WO2012086490A1 PCT/JP2011/078897 JP2011078897W WO2012086490A1 WO 2012086490 A1 WO2012086490 A1 WO 2012086490A1 JP 2011078897 W JP2011078897 W JP 2011078897W WO 2012086490 A1 WO2012086490 A1 WO 2012086490A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- friction stir
- stir welding
- hard phase
- welding tool
- volume
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
- B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
Definitions
- the “joining portion” refers to a joining interface portion where joining of metal materials is desired by abutting metal materials or placing metal materials in an overlapping manner.
- the metal material in the vicinity of the joint interface is softened to cause plastic flow, and the joint interface disappears when the metal material is agitated, and joining is performed.
- dynamic recrystallization occurs simultaneously in the metal material, the metal material in the vicinity of the bonding interface is atomized by the dynamic recrystallization, and the metal materials can be bonded with high strength.
- the friction stir welding technique is mainly applied to non-ferrous metals such as aluminum alloys, magnesium alloys, steel alloys, etc., in which plastic flow occurs at a relatively low temperature.
- Such a friction stir welding technique is superior to the resistance welding method in terms of the cost and time required for joining, the strength of the joined portion, and the like. For this reason, there is a need to apply the friction stir welding technique not only to materials that cause plastic flow at low temperatures, but also to steel materials that cause plastic flow at high temperatures of 1000 ° C or higher.
- various processes using the friction stir welding technique are referred to as friction stir welding processes.
- Patent Document 2 discloses a technique for increasing the surface hardness of a base material by using a cemented carbide or the like having a hardness higher than the hardness of a material to be joined. It is disclosed. Furthermore, Japanese Patent Laying-Open No. 2005-152909 (Patent Document 3) discloses a technique for coating a surface of a base material with a ceramic film such as diamond-like carbon or TiN.
- the present invention has been made in view of the current situation as described above.
- the object of the present invention is to prevent the coating layer from being peeled off from the base material even in a severe environment where heating and cooling are repeated.
- An object of the present invention is to provide a friction stir welding tool that has excellent wear resistance, suppresses the progress of damage to the shoulder portion of the friction stir welding tool, and improves heat cracking resistance. Thereby, the tool for friction stir welding with good joining quality can be provided.
- the thermal expansion coefficient of the cemented carbide constituting the base material is 4 ⁇ 10 ⁇ 6 / ° C. or more and 5 ⁇ 10 ⁇ 6 / ° C.
- the thermal expansion coefficient of the ceramic coating layer is 7 ⁇ 10 ⁇ 6 / ° C. or more and 9 ⁇ 10 ⁇ 6 / ° C. or less.
- this may be the reason why the ceramic coating layer easily peeled off from the base material when friction stir welding of steel or the like. That is, when a material to be joined having a melting point of 1000 ° C.
- one or more metals selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Cr, Mo, and W are used to reduce the difference in thermal expansion coefficient between the substrate and the coating layer.
- a compound comprising one or more elements selected from the group consisting of nitrogen, carbon, boron, and oxygen, or a solid solution (excluding WC) of the compound was studied.
- a friction stir welding tool was completed.
- the base material contains WC particles as the first hard phase, and preferably contains 70% by volume to 95% by volume with respect to the base material. Thereby, the strength, toughness, and heat cracking resistance of the friction stir welding tool can be improved. If it is less than 70% by volume, the strength and toughness of the friction stir welding tool will decrease, and defects will easily occur during the joining process. On the other hand, if it exceeds 95% by volume, the difference in thermal expansion coefficient between the substrate and the coating layer becomes large, so that the coating layer is easily peeled off from the substrate.
- the binder phase is included in the base material in order to bond the first hard phases, the second hard phases, or the first hard phase and the second hard phase.
- a binder phase is made of an iron group metal and is characterized by containing 8% by volume or more and 28% by volume or less based on the base material.
- Co is preferably used as the binder phase for bonding the first hard phases
- Ni is preferably used as the binder phase for bonding the second hard phases.
- Each composition ratio in the case of using Co and Ni as the binder phase can be arbitrarily changed. Any material can be used as the binder phase as long as it is made of iron metal. That is, the present invention is not limited to Co and Ni.
- Examples 1 to 11 and Comparative Examples 1 to 5 First, by mixing the material constituting the first hard phase, the material constituting the second hard phase shown in Table 1 below, and Co constituting the binder phase in a volume ratio shown in Table 1 below. A mixed powder was obtained.
- WC particles having an average particle diameter shown in Table 1 were used as the material constituting the first hard phase
- Co powder having an average particle diameter of 0.5 ⁇ m was used as the material constituting the binder phase.
- the volume ratio of nitride and / or carbonitride in the second hard phase is 30% by volume or more and 100% by volume or less. Improved.
- the thermal expansion coefficient of the base material is increased, it is difficult for the base material and the coating layer to be peeled off, thereby suppressing the peeling of the coating layer. For this reason, it was excellent in the oxidation resistance of the shoulder part, and the joining quality could be improved.
- the friction stir welding tools of Examples 10 to 11 increase and decrease the volume ratio of the Co binder phase with respect to Example 2, but this also has excellent resistance to resistance equivalent to that of the friction stir welding tool of Example 2. Abrasion and bonding quality could be obtained.
- the wear resistance and bonding quality of the friction stir welding tools of Comparative Examples 1 and 2 are not excellent because the volume ratio of the second hard phase is too small and the covering layer is easily peeled off and the shoulder portion is oxidized. This is thought to be easier.
- the reason why the heat cracking resistance of the friction stir welding tool of Comparative Example 3 is not excellent is considered to be that the strength of the base material is lowered due to the excessive volume ratio of the second hard phase.
- Example 12 the same composition as that of Example 7 was prepared except that the composition of the coating layer was changed to an Al 0.6 Ti 0.35 Si 0.05 N layer having an oxidation start temperature of 1130 ° C. and the thickness was 3 ⁇ m.
- Example 13 the same composition as that of Example 7 was prepared except that the composition of the coating layer was changed to a Ti 0.5 Al 0.5 N layer having an oxidation start temperature of 970 ° C. and the thickness was 3 ⁇ m.
- evaluation similar to said abrasion resistance was performed. The results are shown in Table 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
L'invention porte sur un outil rotatif pour soudage par friction malaxage, qui a une excellente résistance à l'usure et qui réalise une soudure de bonne qualité, et dans lequel une couche de revêtement n'est pas facilement séparée d'une base. Cet outil pour soudage par friction malaxage est muni d'une base et d'une couche de revêtement qui est formée sur la base et il est caractérisé en ce que : la base comprend une première phase dure, une seconde phase dure et une phase de liant ; la première phase dure est formée de particules de WC ; la seconde phase est formée d'un composé qui est composé d'un ou de plusieurs métaux qui sont choisis dans le groupe constitué par Ti, Zr, Hf, Nb, Ta, Cr, Mo et W et d'un ou plusieurs éléments qui sont choisis dans le groupe constitué par l'azote, le carbone, le bore et l'oxygène, ou d'une solution solide du composé (à l'exclusion du WC) ; la seconde phase dure est contenue en une quantité de 3-30 % en volume (inclus) relativement à la base ; la phase de liant est formée d'un métal du groupe du fer et elle est contenue en une quantité de 8-20 % en volume (inclus) relativement à la base ; et le rapport des constituants de la première phase dure est plus grand en termes de volume que le rapport de constituants de la seconde phase dure.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11849920.1A EP2656958A4 (fr) | 2010-12-22 | 2011-12-14 | Outil rotatif |
US13/995,386 US8998062B2 (en) | 2010-12-22 | 2011-12-14 | Rotary tool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010-286003 | 2010-12-22 | ||
JP2010286003A JP2012130948A (ja) | 2010-12-22 | 2010-12-22 | 回転ツール |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012086490A1 true WO2012086490A1 (fr) | 2012-06-28 |
Family
ID=46313766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/078897 WO2012086490A1 (fr) | 2010-12-22 | 2011-12-14 | Outil rotatif |
Country Status (4)
Country | Link |
---|---|
US (1) | US8998062B2 (fr) |
EP (1) | EP2656958A4 (fr) |
JP (1) | JP2012130948A (fr) |
WO (1) | WO2012086490A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9440288B2 (en) | 2012-11-05 | 2016-09-13 | Fluor Technologies Corporation | FSW tool with graduated composition change |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013000773A (ja) * | 2011-06-16 | 2013-01-07 | Sumitomo Electric Ind Ltd | 被覆回転ツール |
DK2591874T3 (en) * | 2011-11-11 | 2018-07-23 | Sandvik Intellectual Property | Stir friction welding tool made of cemented tungsten carbide with nickel and with an Al2O3 surface coating |
EP2813314B1 (fr) * | 2013-06-10 | 2018-03-07 | Airbus Defence and Space GmbH | Outil et procédé de friction-malaxage pour une pièce comprenant un revêtement |
CN103934566B (zh) * | 2014-04-29 | 2016-05-04 | 长春三友汽车部件制造有限公司 | 一种提高搅拌摩擦焊接高强铝合金的搅拌头耐磨性的方法 |
AT15220U1 (de) * | 2016-03-07 | 2017-03-15 | Ceratizit Austria Gmbh | Verfahren zur Herstellung einer Hartstoffschicht auf einem Substrat, Hartstoffschicht, Zerspanwerkzeug sowie Beschichtungsquelle |
US11931819B2 (en) * | 2016-10-05 | 2024-03-19 | Purdue Research Foundation | Methods for manufacturing ceramic and ceramic composite components and components made thereby |
CN106392300A (zh) * | 2016-11-23 | 2017-02-15 | 北京世佳博科技发展有限公司 | 一种提高搅拌摩擦焊搅拌头寿命的方法 |
Citations (8)
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JPS58104174A (ja) * | 1981-12-15 | 1983-06-21 | Hitachi Metals Ltd | 被覆超硬合金 |
JPH07505090A (ja) | 1991-12-06 | 1995-06-08 | ザ ウェルディング インスティテュート | 摩擦溶接方法 |
JP2001314983A (ja) | 2000-04-28 | 2001-11-13 | Mazda Motor Corp | 接合方法及び接合装置 |
JP2003326372A (ja) * | 2002-05-10 | 2003-11-18 | Nachi Fujikoshi Corp | 摩擦攪拌接合用ツール |
JP2004195480A (ja) * | 2002-12-16 | 2004-07-15 | Furuya Kinzoku:Kk | 薄板の接合方法 |
JP2005152909A (ja) | 2003-11-21 | 2005-06-16 | Mitsubishi Heavy Ind Ltd | 回転ツール及び摩擦撹拌接合装置及び摩擦撹拌接合方法 |
WO2009062216A1 (fr) * | 2007-11-16 | 2009-05-22 | Boehlerit Gmbh & Co.Kg. | Outil de soudage par friction malaxage |
JP2009543696A (ja) * | 2006-01-31 | 2009-12-10 | ワールドワイド ストラテジー ホールディングス リミテッド | 高性能摩擦撹拌接合ツール |
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US5697994A (en) * | 1995-05-15 | 1997-12-16 | Smith International, Inc. | PCD or PCBN cutting tools for woodworking applications |
KR100286970B1 (ko) * | 1996-12-16 | 2001-04-16 | 오카야마 노리오 | 초경 합금, 이의 제조방법 및 초경 합금 공구 |
KR100587444B1 (ko) * | 1997-11-06 | 2006-06-08 | 스미토모덴키고교가부시키가이샤 | 피복 초경 합금 공구 |
US6521353B1 (en) | 1999-08-23 | 2003-02-18 | Kennametal Pc Inc. | Low thermal conductivity hard metal |
MXPA02010935A (es) * | 2000-05-08 | 2004-09-06 | Univ Brigham Young | Soldadura por agitacion y friccion utilizando una herramienta superabrasiva. |
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US20060049234A1 (en) * | 2004-05-21 | 2006-03-09 | Flak Richard A | Friction stirring and its application to drill bits, oil field and mining tools, and components in other industrial applications |
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US20070187465A1 (en) * | 2006-01-31 | 2007-08-16 | Eyre Ronald K | Thermally enhanced tool for friction stirring |
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JP5610357B2 (ja) * | 2010-03-12 | 2014-10-22 | 住友電工ハードメタル株式会社 | 立方晶窒化硼素焼結体工具 |
JP2012139696A (ja) * | 2010-12-28 | 2012-07-26 | Sumitomo Electric Ind Ltd | 回転ツール |
DK2591874T3 (en) * | 2011-11-11 | 2018-07-23 | Sandvik Intellectual Property | Stir friction welding tool made of cemented tungsten carbide with nickel and with an Al2O3 surface coating |
-
2010
- 2010-12-22 JP JP2010286003A patent/JP2012130948A/ja active Pending
-
2011
- 2011-12-14 WO PCT/JP2011/078897 patent/WO2012086490A1/fr active Application Filing
- 2011-12-14 EP EP11849920.1A patent/EP2656958A4/fr not_active Withdrawn
- 2011-12-14 US US13/995,386 patent/US8998062B2/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58104174A (ja) * | 1981-12-15 | 1983-06-21 | Hitachi Metals Ltd | 被覆超硬合金 |
JPH07505090A (ja) | 1991-12-06 | 1995-06-08 | ザ ウェルディング インスティテュート | 摩擦溶接方法 |
JP2001314983A (ja) | 2000-04-28 | 2001-11-13 | Mazda Motor Corp | 接合方法及び接合装置 |
JP2003326372A (ja) * | 2002-05-10 | 2003-11-18 | Nachi Fujikoshi Corp | 摩擦攪拌接合用ツール |
JP2004195480A (ja) * | 2002-12-16 | 2004-07-15 | Furuya Kinzoku:Kk | 薄板の接合方法 |
JP2005152909A (ja) | 2003-11-21 | 2005-06-16 | Mitsubishi Heavy Ind Ltd | 回転ツール及び摩擦撹拌接合装置及び摩擦撹拌接合方法 |
JP2009543696A (ja) * | 2006-01-31 | 2009-12-10 | ワールドワイド ストラテジー ホールディングス リミテッド | 高性能摩擦撹拌接合ツール |
WO2009062216A1 (fr) * | 2007-11-16 | 2009-05-22 | Boehlerit Gmbh & Co.Kg. | Outil de soudage par friction malaxage |
Non-Patent Citations (1)
Title |
---|
See also references of EP2656958A4 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9440288B2 (en) | 2012-11-05 | 2016-09-13 | Fluor Technologies Corporation | FSW tool with graduated composition change |
US10286481B2 (en) | 2012-11-05 | 2019-05-14 | Fluor Technologies Corporation | FSW tool with graduated composition change |
Also Published As
Publication number | Publication date |
---|---|
EP2656958A1 (fr) | 2013-10-30 |
EP2656958A4 (fr) | 2017-07-26 |
US20130284793A1 (en) | 2013-10-31 |
JP2012130948A (ja) | 2012-07-12 |
US8998062B2 (en) | 2015-04-07 |
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